| 摘要 |
The present disclosure discloses a dimming method of a lighting apparatus using a PN junction light-emitting element, the method including: supplying AC controlled by a dimmer; causing a first group, which has one PN junction light-emitting element positioned within a first boundary and one PN junction light-emitting element positioned within a second boundary, to emit light at a first voltage by the supplied AC when a first switch is in the ON state; and causing a second group, which has another PN junction light-emitting element positioned within the first boundary and another PN junction light-emitting element positioned within the second boundary and which is connected in series to the first group, to emit light at a second voltage higher than the first voltage by the supplied current when the first switch positioned between the first group and the second group is in the OFF state.
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